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Added initial support for STM32_PKA ECC accelerator

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This commit is contained in:
Daniele Lacamera
2019-10-04 20:13:26 +02:00
parent 0d43c1f3d7
commit 52bf19eefd
3 changed files with 406 additions and 8 deletions
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23
wolfcrypt/src/ecc.c
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@@ -134,6 +134,10 @@ ECC Curve Sizes:
#include <wolfssl/wolfcrypt/port/nxp/ksdk_port.h>
#endif
#if defined(WOLFSSL_STM32_PKA)
#include <wolfssl/wolfcrypt/port/st/stm32.h>
#endif
#ifdef WOLFSSL_SP_MATH
#define GEN_MEM_ERR MP_MEM
#elif defined(USE_FAST_MATH)
@@ -2448,7 +2452,7 @@ done:
#endif /* !WOLFSSL_SP_MATH || WOLFSSL_PUBLIC_ECC_ADD_DBL */
#if !defined(FREESCALE_LTC_ECC)
#if !defined(FREESCALE_LTC_ECC) && !defined(WOLFSSL_STM32_PKA)
#if !defined(FP_ECC) || !defined(WOLFSSL_SP_MATH)
/**
@@ -2941,7 +2945,7 @@ exit:
#endif /* !FP_ECC || !WOLFSSL_SP_MATH */
#endif /* !FREESCALE_LTC_ECC */
#endif /* !FREESCALE_LTC_ECC && !WOLFSSL_STM32_PKA */
/** ECC Fixed Point mulmod global
k The multiplicand
@@ -3809,9 +3813,8 @@ int wc_ecc_point_is_at_infinity(ecc_point* p)
return 0;
}
#ifndef WOLFSSL_SP_MATH
/* generate random and ensure its greater than 0 and less than order */
static int wc_ecc_gen_k(WC_RNG* rng, int size, mp_int* k, mp_int* order)
int wc_ecc_gen_k(WC_RNG* rng, int size, mp_int* k, mp_int* order)
{
#ifndef WC_NO_RNG
int err;
@@ -3852,7 +3855,6 @@ static int wc_ecc_gen_k(WC_RNG* rng, int size, mp_int* k, mp_int* order)
return NOT_COMPILED_IN;
#endif /* !WC_NO_RNG */
}
#endif /* WOLFSSL_SP_MATH */
#endif /* !WOLFSSL_ATECC508A && !WOLFSSL_CRYPTOCELL */
static WC_INLINE void wc_ecc_reset(ecc_key* key)
@@ -4676,7 +4678,7 @@ int wc_ecc_sign_hash(const byte* in, word32 inlen, byte* out, word32 *outlen,
}
#endif /* !NO_ASN */
#if !defined(WOLFSSL_ATECC508A) && !defined(WOLFSSL_CRYPTOCELL)
#if !defined(WOLFSSL_ATECC508A) && !defined(WOLFSSL_CRYPTOCELL) /* TODO DLX: add !defined(WOLFSSL_STM32_PKA) */
/**
Sign a message digest
in The message digest to sign
@@ -5531,8 +5533,14 @@ int wc_ecc_verify_hash(const byte* sig, word32 siglen, const byte* hash,
key The corresponding public ECC key
return MP_OKAY if successful (even if the signature is not valid)
*/
int wc_ecc_verify_hash_ex(mp_int *r, mp_int *s, const byte* hash,
word32 hashlen, int* res, ecc_key* key)
#if defined(WOLFSSL_STM32_PKA)
{
return stm32_ecc_verify_hash_ex(r, s, hash, hashlen, res, key);
}
#else
{
int err;
word32 keySz;
@@ -5836,7 +5844,7 @@ int wc_ecc_verify_hash_ex(mp_int *r, mp_int *s, const byte* hash,
if (err == MP_OKAY)
err = mp_copy(key->pubkey.z, mQ->z);
#ifdef FREESCALE_LTC_ECC
#if defined(FREESCALE_LTC_ECC)
/* use PKHA to compute u1*mG + u2*mQ */
if (err == MP_OKAY)
err = wc_ecc_mulmod_ex(u1, mG, mG, curve->Af, curve->prime, 0, key->heap);
@@ -5922,6 +5930,7 @@ int wc_ecc_verify_hash_ex(mp_int *r, mp_int *s, const byte* hash,
return err;
}
#endif /* WOLFSSL_STM32_PKA */
#endif /* HAVE_ECC_VERIFY */
#ifdef HAVE_ECC_KEY_IMPORT